In operando observation of temperature-dependent phase evolution in lithium-incorporation olivine cathode
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- 作者：Mengyu Yana ; 1Author Vitae ; Guobin Zhanga ; 1Author Vitae ; Qiulong WeiaAuthor Vitae ; Xiaocong TianaAuthor Vitae ; Kangning ZhaoaAuthor Vitae ; Qinyou Ana ; anqinyou86@whut.edu.cn" class="auth_mail" title="E-mail the corresponding authorAuthor Vitae ; Liang ZhouaAuthor Vitae ; Yunlong Zhaoa ; bAuthor Vitae ; Chaojiang NiuaAuthor Vitae ; Wenhao RenaAuthor Vitae ; Liang HeaAuthor Vitae ; Liqiang Maia ; mlq518@whut.edu.cn" class="auth_mail" title="E-mail the corresponding authorAuthor Vitae
- 关键词：In-situ X-ray diffraction ; LiFePO4 ; Intermediate phases ; Low temperature
- 刊名：Nano Energy
- 出版年：2016
- 出版时间：April 2016
- 年：2016
- 卷：22
- 期：Complete
- 页码：406-413
- 全文大小：3138 K
文摘
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Laboratory X-ray source is employed to probe the electrochemical reaction with high time resolution.
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For the first time, we demonstrate the existence of intermediate phases during the lithiation/delithiation processes at low temperature.
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Such intermediate phases between LiFePO4/FePO4 can efficiently inhibit the degradation of ion diffusion coefficient with decreasing of reaction temperature.